Window-ventilator.



Winsum:

J. A. SHEA.

WINDOW VENTEAIOB..

APPLIOATIQN FILED JULY 23,1908.

Patented Dec. 1,1908.

2 SHEETS-SHEET l.

y J. A. SHEA. Y vWmnow vmmuo.

Y 'APPLICATION FILED JULY Z3, 1908.

Patented Dec. 1,-1908:

2 SHEETS-SHEET 2.,

UNITED sTArlSA PATENTOFFICE.

JAMES a. SHEA, oF PITTSBURG, PENNSYLVANIA.'

.WINDow-vENTILA-fron.

To. all whom it may concern: y l

Be it known that I, JAMES A. Srmmcitizen of the United States, burg, inthe county of Allegheny andState of Pennsylvania, have invented.certainr new and useful .Improvements in Window-'Ventilators',

d cation, in which drawing ication. v l

My invention relates to ventilators and is especially adapted forservice in the win-- dows of dwellings, oliCeS, etc.

'I he invention has for itsobjectl theprovision of ventilator meanswhereby freshan" of which the following is `aspecispeel-amena e: LetterePatent. d Appumammea/Jdly. 2e, l190s. seal-N0. 444,993.

.residing a Piasf is taken'into the room and the impure air i withdrawn,said invention havingv certain new land novel features of constructionand operation as will be hereinafter more fully described in connectionwith the accompanying drawings forming a part ofthis specifis: f F'gureI, is a frontA elevation of the inside of a window and attending frame,showing the application ofnny improved ventilator thereto.' Flg. 11 1san'enla-rged transverse sectional view throl'lgh the same. Fig, III.`vis an end elevation of .the air outlet member- Views -having similarparts designated by I like numerals of reference.

The inventioncomprises an intake menuber which consists in'structure ofan elon-I gated` frame, preferably formed of' sheet meta1, the' sidewalls 1 thereof having 'out-v wardly disposed flanges` 2-at the frontand the base portion 3which is ada ted to engage? upon the sill proper 4am has at itsv rear a downwardly disposed flange 4 -to en gage thesub-sill, said frame having its upper `portion 5 formedat an elevationbelow' that of the upper edge o :t the side walls and extends from therear but part way inwardly so as to form a support for the lower vsashand carries-upon its mner upper edge a-weather strip 7 which is securedthereto by screws 8. Pivotally secured to the rear of and within thebase of said frame is a movable vdeliector blade 9v-wh`ich inclines inan lupward direction through the open space at thev top, which blade hassuitablyV secured to the upper surface thereof agauze'fabric or lPatented Dec. 1, laos.

screen wire-10 which is al'sosecured between Athe aforesaid weatherstrip 7 and top portion 5 of the frame. P ivotally secured atv the baseof and within the front portion of, the frame is anadjustable support l1the upper edge of which is tapered to a 4fine edge and enga-ges'a strip'of'. wood .or other lsuitable material 12 of4 a non-slipping nature iattached to the underside of the deflector blade, said support carryingpins 13 whichv extend through radial slots 14 in the sidel walls of thefra1ne,`said slots being closed at thefront of the frame by the smalcarried by the frame to limit the inward movement of' the support.Secured to the g side walls of the frame are the laterally disposedflanges 16 into which are loosely fitted Ithe wooden extension pieces1,7 carryin weather strips 18 to engage the sash andsil Vand fillA upthe space between the same and frame, which extension pieces I prefer beprovided 'with small pins 19 to enter the sashv and assist in retainingthe' same in position, The air outlet member consists of a frame`20p1'e1l`erably formedof sheet metal, to engage between the upper sash21 and frame 22 plates 15 and is provided with a strip .23 at the topltopreserve a level. position with the inner portln of the frame and witha weather strip 24;y upon lts under slde to engage the inner port1on ofthe, sash, said frame having Ya rear wall 25 which extends downvertically and thence outwardly at an angle to a point -on about a levelwith the base of the ame leaving a narrow air .outlet space 27. Thisframe is also provided with a sci'eeu-27a11d, like that ofthe intake, ispreferably elon- 'gated in form and is also provided with laterally disosed flanges 28 between which engages woor en extensions 29 providedwith weather strips 30 to fill up the remaining space between the windowframe and sash.

In order to make the window .sashes secure against movement from theoutside, I provide suitable fasteners 31 for the upper vsash 21'a1i'dfasteners 32 for the lower sash 6.

In practice, the 'deflector blade, which is I 'shown as occu ying itsextreme inward inclmatlon, 1s a ]usted by mea-ns of the support 11, soas to open or close the space be- 'tween the blade and strip 7 toregulate the intake space and consequent amount of air ,f;-lesired, orshut oli' the supply if desired by moving the; plate 11 toward thedeliector blade to cause the said blade to engage against the said stripWhen air is beingsupplied to the room, through the intake, as indicatedby the arrows, aconstant circulation of air through the room is inducedby the action of the external air currents upon the deflector lip 26 ofthe outlet member, causing a tendency to form a'vacuum in the outletmember with the result that the air in the room is drawn off through.the outlet member at the same time as fresh air is being suppliedthrough the intake member.

By making the extension pieces 17 and 29 of wood, they may be readilyshortened to tit any sized window.

At Fig. VI, the deflector blade 9 is shown as provided with a'toothedrack 12"which may be substituted for the previously mentioned stripofwoodl2 to be engaged by the support 11.

Having thus fully shown andfdescribed my invention, what I claim as newand desire to secure by Letters Patent is:

1. In a window ventilator, a frame adapted te engage between the lowerwindow sash and the frame sill, theair inlet thereof embracing the rearand a portion of the frame top, an upwardly and inwardly inclineddetlector blade pivotally secured at its base in saidfrarne, the freeend of which extends into the spaceat the top of the frame and isadapted to be adjusted to regulate the flow of air therethrough, and anupwardly disposed member pivotally attached to the frame beneath thesaid blade for supporting and adjusting the latter.

2. In a window ventilator, a frame adapted to engage between the lowerwindow sash and the frame sill, the air inlet thereof embracing the rearand a portion of the top of the frame, an upwardly and, inwardlyinclined delector blade pivotally secured at its lower end to the frame,the free end of 1 which extends into the s ace at the top of the frameand is adapte to be adjusted to regulate the flow of air therethrough,an upwardly disposed member pivotally attached to the frame beneath thesaid blade for supporting and adjusting the latter, and a screendisposed across the .air inlet and attached to the frame and blade.

3. In a window ventilator, a frame adapted to engage between the lowerwindow sash and the frame sill, the air inlet thereof embracing the rearand a'portion of the top of the frame, an u wardly and inwardlyineline'd deiector biirde pivotally secured at its lower end to theframe, the free end of which extends into the space at the to of theframe and is adapted to' be adjuste to regulate the iiow of airtherethrou h, an upwardly disposed member pivotal y attached to thefront of the frame beneath the, blade for supportin and adjusting thesame, a screen dispose across the air inlet and attached to the frameand blade, andlaterally disposed members fitted between the sash andframe and against the ends of the venti* lator frame to fill up -thespace therebetween.

4. In a window ventilator, a frame adapted to engage between the lowerwindow sash andthe frame sill, the air inlet thereof embracing the rearand a portion of the top of the frame, an upwardly and inwardly inclineddeflector blade pivotally secured at its lower end to the frame, thefree end of which extends into the space at the top of the frame and isadapted to be adjusted to regulate the flow of air therethrough, anupwardly disposed member pivotally attached to the front of the framebeneath the detlector blade and is adapted to support and adjust thesame, a screen disposed across the air inlet and attached to 1the frameand blade, laterally disposed members fitted between the sash and frameand against the ends of the Ventilator frame, and means arranged betweenthe upper window sash and frame top to withdraw the impure air displacedin ,the room by the intake member.

5. In a window ventilator, a` frame adapted to engage between the-lowerwindow sash and frame sill, the air`inlet thereof embracing the rear anda portion of the top of the frame, an upwardly and inwardly inclineddeflector blade pivotally secured at its lower end to the frame, the.free end of which extends into the space at the top of the frame and isada ted to be adjusted to regulate the fiow of air therethrough, ahinged door on the front of the frame the upper free end of whichengages with and is adapted to adjust the. said blade, asi-.reendisposed across the said inlet and attached to said frame and blade,laterally disposed members fitted between thesash and winden' frame theinner ends of which engage bctween flanges carried by the ends of theventilator frame, and means arranged be tween the upper window sash andframe top to withdraw the impure air displaced in the room by the intakemember.

In testimony whereof I aiiix my signature in presence of two witnesses.

JAMES A, SHEA.

